A keen sportsman, Hamilton attended the
1936 Summer Olympics in
Berlin. He was a member of a multi-party parliamentary group that was invited to observe the games by the German government. Hamilton flew his own plane to Germany. While in Berlin, he attended numerous functions, including a grand dinner for the British contingent hosted by
Joachim von Ribbentrop. At that time, Ribbentrop was the German ambassador to Britain, and had previously met Hamilton in London. At this dinner, Hamilton was introduced to Hitler and other leading members of the Nazi government.
Hermann Göring suggested Hamilton should inspect the newly reinstated
Luftwaffe, given his professional interest in aviation. During this trip, Hamilton met the diplomat
Albrecht Haushofer, son of the geopolitical academic
Karl Haushofer. The younger Haushofer had studied alongside Deputy Fuhrer
Rudolf Hess at the
Ludwig-Maximilians-Universität München and was then Hess's advisor on foreign affairs. At the outbreak of war, Hamilton resumed his commission with the honorary rank of
air commodore. He was made responsible for the aerial defence of a sector of Southern Scotland and Northern England. He also took command of the
Air Training Corps. In 1940, upon his father's death, Hamilton succeeded to the dukedom. He was
Mentioned in Dispatches for his war service and was promoted to temporary
group captain on 1 June 1941.
Hess affair , Scotland In August 1940 Hess had a conversation with Albrecht Haushofer, who told him that
King George VI was opposed to
Winston Churchill and could be persuaded to dismiss Churchill and end the war with Germany. Hess became convinced that Hamilton was one of the leaders of a party opposed to war with Germany, and decided to make contact with the King through Hamilton. On Hess's instructions, Haushofer wrote to Hamilton in September 1940, but the letter was intercepted by
MI5 and Hamilton did not see it until March 1941. Unlike Haushofer, Hess did not know Hamilton personally: it was later established that they were both present at a banquet at the 1936 Olympics, but they sat at different tables and never spoke at the time. Hess eventually decided to go himself on a "peace mission" to the United Kingdom. On 10 May 1941 he parachuted into Scotland, landing at 10:34 pm on Floors Farm, near
Eaglesham and close to the Duke's home. He was quickly captured, gave his name as "Alfred Horn", and claimed to be a friend of the Duke of Hamilton. Hess asked to see the Duke, but was instead taken to a local
Home Guard post, then a hospital to address the injuries he sustained during his descent and landing. Hamilton was informed of the prisoner's request and visited him in hospital. Hess revealed his true identity to Hamilton and claimed that he was on a secret mission to negotiate a peace treaty. Hamilton immediately contacted the prime minister,
Winston Churchill, and informed him of Hess's arrival and purported mission. Hess was imprisoned by the British authorities until the end of the war and the subsequent
Nuremberg trials. Speculation has since continued that Hamilton had been in contact with Hess before 1941, and was informed of his mission. There is, however, no evidence that he was sympathetic to
Nazi Germany or associated with an anti-Churchill faction as Hess believed. In 1942, Hamilton successfully sued for
libel two
Communist Party members who had claimed that he and Hess were friends. ==Offices and positions held==